Belt squaring and punching machine



Oct. 27, 1925., 1,558,861 A. J. GERRARD ET AL BELT SQUARING AND PUNCHINGMACHINE v Filed ma 13, 1924 t e see 1 gmnnbz ALEc. u 'GERRARD A-NDLEROY. HINTZ,

Oct. 27, 1925- gwuemhns ALEQ J.6,RRARD LEROY F. HmTz,

the an,

Patented Oct. 27, 1925.

UNIT-ED ALE'C it; GERRARD, 0F

BELT- SQUARINGI AND pp i a ion ledM y To (:ZZ who-m it may coawerni:

Be it known that we, Annoy Gnnnann and Laser F Hi rrz respectively asubject of th King f G at Bri a n and a i iz of the United States,residing, respectively, at Chicago and Highland Park, in the couns fCook a d Lake and State 'll n have inven ed cer a n new an us fu 1- pr vments in Bel Sq ing and ching ines; and. e do herebydeo a he f low ng tob a f ll, clea and d sc iptio f e n en ion, Sashe l nab e othe s illed ihe ar t whi h i app rtains to make and use the same.

This invention relates to a belt squaring and punching machine and hasfor its object to provide a device of this character which will besimple in construction, comparative ly inexpensive to manufacture. andmore (fficleilli in use than those which have been heretofore proposed,I

\Vith these anl other objects in iew the invention consists in the noveldetails of construction and combinations of parts-as will be more fullyhereafter-disclosed and 1 articularly pointed-out in the claims.

Referring to the accompanying drawings, forming a part of thisspecification, in which like numerals designate like parts in all theviews,

Fig. 1 is a top plan view of a machine made in accoroance with theintention;

Fig. 2 is a sectional view taken on the line 9-2 of Figure 1 and looking1n the direction of the arrow Fig. ,3 is a sectional Iview taken-on theline -l3 of Figure land looking in the direction of the arrow;

Fig. i is a partial sectional view taken on the line H of Figure 1and;lo oking in the direction of the arrow;

Fig. isa detail View of the cutter mounting: and

Fig. 6 is a diagrammatic viewshowing the application of a belt fastenerto a belt punched by a machine made in accordance with this invention.

In the drawings 1 represents a doublecdgcd cutter rigidly secured to alever-like member 2- pinned or otl'ierwise secured to the cutter shaft 3which passes through an angular extension d of the supporting memhcrprorided with thezhead 6 slidably mounted on the guide rod-1T supportedbe- CHICAGO, AN'D'LEROY F. HINTZ, O'FHIGHLAND' PARK,-ILLI1\ToIs,;sAnrHIN'rz ass onon T0 SAID, GERRABD.

PIiNcHINe MACHINE. 192 4. Scria1 NOJL7-12',977.

tween the extremities 8 and 9 of the cutter frame 10, all as will beclear from Figures 1 and 4;. The said cutter frame is provided with a]downwardly extending portion 12;} having on one side a verticalbearing-surface 14 and on its opposite side a horizontally disposedgroove or track 15, in which is slidably supported one end 16 of thecutter shaft 3. A handle17 is secured to the op-i PQS tQ nd o t s i shaf3- 2? h ch; it will be seen from Figuresl, st and 5 the cutter l and itsoperating shafts mayhe rotatedas ell moved in either direction betweenthe extremities 8 and 9 of the cutter frame lO. V v I A slot 20 isprovided in the horizontally dispose-d portion-'21of the cutter framjethrough Which the double edged cutter 1 may pass. Also located in theportion 21 is a roW of spaced tapered holes 22, the smaller diameter ofsaid holes beingg-loweh m t a cle r y e n in ig r 1 n The purpose ofthese holes will be disclosed hereafter. i

The belt receiving partof this mechanism comprises a base constitutingthe table having its front edge squared to abut, and Slide 0. th flatb ain u f ce oft-he cutter frame '10. Entending outwardly from the flatbearing-surface Hare two lugs 31 and 32 each bored to slidingly receiverespectivelythe pins 33 and carried by the table 30 and which act tohold said table to the cutter frame all as will be clear from Figuresland 2. The said table 3 0 is of a Width less than th space between t elugs 31 and 32 in order that the said table may be adjusted laterally asmay be required and as wvill be explained .later- This lateral movementof the table is accomplished by turning the adjusting :k nohmember 35which is so mounted on the extremity of the lug 32 that it will not movelaterally therefrom but upon turning the said member 35 the table 30will be moved toward or from the lug by action of the-worm 36 rigid with35 and which is threaded into .the' body of the said table.

The table 30 is provided with the upstanding side edges or shoulders 40which extend perpendiculanly from the bearing surface 14 of the cutterfraune and ifVglllCll constitutestraight edges against-which will heplaced one side edge of the belt to be operated upon, said shoulders 10being longitudinally disposed at right angles tothe slot in the frame10. These shoulders are extended as at 4C1 and 42 to provide bases forthe vertical posts 43 and 4% respectively.

The belt clamping portion of this device (see Figures 1, 2, 3 and 4-)comprises the clamping bar slidably mounted on the posts 43 and 1 1 andprovided with the upwardly projecting bearing lugs 51 and 52 adapted tobe engaged by the bevelled under-surface of the square nuts or wedges 53and 54 respectively. These wedges may be moved towards or away from eachother simultaneously by virtue of the fact that they are mounted on theright and left threaded worm shaft 55 having shouldered bearings 56 and57 in the posts 13 and 14: and provided at one end with the hand wheel58. The clamping bar is hollowed out as at 60 to a Width to allow thesliding of the wedges 53 and 54 therein but not su'tlicient to allowrotation of the said wedges.

At the front side, the clamping bar is provided with the extension 61 inwhich is cut the elongated opening 62 and it will be seen from Figs. 1,2 and 4 that the extreme forward edge of the extension 61 extends nearlyto the slot 20 through which operates the cutter 1. Interposed betweenthe bases 41 and 42 and the overlying ends of the clamping bar 50 andadjacent the posts 48 and 4 1 respectively are the springs 65 and 66suitably held against displacement and serving to hold the clamping barin raised position. When the handle 58 is turned, however, theoppositely threaded worm 55 will cause the nuts or wedges 53 and 54 tomove away from each other, whereupon due to the inclined or bevelledunder-surfaces of the wedges, the contacting lugs 51 and 52 andtherefore the entire clamping bar will be forced downwardly against thetension of the said springs and ultimately clamp the belt beneath thebar 50 tightly to the table 30.

Referring now to Figures 1 and 2, 70 rep resents a belt punch providedwith the usual springs 71 and slidably mounted upon the guide rod 7which forms the pintle of the hinge joint of said punch 70. The end ofone of the punch jaws 72 is adapted to engage, and slide in, the grooveor track 15. The other jaw 73 of the punch is provided at its end with abore through which may be passed the threaded neck portion of a cuttingdie 75 which may be conveniently fas tened to the jaw 73 as by the locknut or cap 76 engaging the protruding threaded portion of the said die.Riveted or otherwise securely fastened to the jaw 73, and located aboutn'iidway thereof, is a centering finger 77 extending downwardly ortoward the other aw 72 and located in the plane of the two and therebyposition the punch 70 so that the holes punched in a belt by the die 75will be spaced the same distance apart as are the holes 22. 80 is a holein the lower jaw 72 through which the end of the centering finger maypass when the jaws 72 and 73 are brought together. a

The punching die, as will be seen in Figures 1 and 2, is adapted to passthrough the elongated opening 62 of the clamping bar 50 and, as statedabove, will cut holes in a belt held by said clamping bar in accordancewith the spacings of the holes 22 which the finger 77 engages.Therefore, the spacing of the holes 22 is made the same as the spac ingof the prongs 80 of the strip 81 of metal fasteners to be used forholding the ends 82 and S8 of the belt; see Figures 1 and 6. Further therelation of the parts 20, 50, 62 and 75 is such (see Figures 1, 2 and 6)that the row of holes 84 cut in the belt by the die 75 will be parallelto the slot 20 and spaced therefrom a distance equal to the distancefrom the middle point 85 of the strip of fasteners to the downward ben'd86 of each prong 80. Therefore, if the edge 87 of the end 83 of the beltto be punched lies along the slot 20 when the holes 8% are cut by thedie 75, then the row of said holes will be properly spaced from the edge87 of the belt to receive the strip 81 of fasteners.

The operation of the device will be clear from the foregoing descriptionbut may be briefly summarized as follows: The belt is slipped under theclamping bar 50 and positioned with a longitudinal edge thereofcontacting a straight edge or shoulder a0. If the end of the belt is notsquare then the belt is slipped along the shoulder t0 until the entirewidth of the belt overlies the slot 20. The wheel 58 is then turned tooperate the wedges 58 and 54: which in turn force the clamping bar 50down upon the belt. The double-edged cutter l, and its associated partswhich during this procedure have been at either end of the slot 20, isnow run across the machine to the opposite end of the said slot by meansof the handle 17. To facilitate the cutting of the belt, the handle 17should be actuated in short arcs thus producing a cutting action of thecan opener type. After the cutter 1 has been thus operated, the endportion of the belt will have been trimmed off squarely and with a trueperpendicular out.

In order that the holes to be punched in the belt may be approximatelyequidistant from the longitudinal or side edges thereof, the table 30 towhich the said belt is clamped is adjusted laterally to properlyposition the belt with reference to thefingeriguide holes 22 carried bythe stationary cutter frame 10. This adjustment as heretofore disclosedis accomplished by turning the knob 35 held by the cutter frame 10thereby actuating the worm 36 threaded into the table 30. The knob 35 isturned until iti's'seen that. the edges of the belt are respectivelyequidistant from the first hole 22 toward the opposite edge of the saidbelt. Y

The punch is then moved along the guide rod 7 and operated so as topunch opposite each bevelled hole 22 the required holes in the trimmedend of the belt. Then the hand wheel 58 is oppositely turned to move thewedges 53 and 5st toward each other whereupon the springs 65 and 66 willraise the clamping bar 50 off the belt, allowing the punched end to beremoved. The other end of the belt may then be inserted, positioned,clamped, cut, punched and removed in the same manner as above disclosed.

The usual shop. method of trimming a belt is that of cutting the beltfrom its top surface by running a knife over and over again inya grooveformed by the blade. This ordinarily isa laborous taskand generallyproduces an edge which is not only not perpendicular to the surface ofthe belt, but which is sometimes as muchas 30 to the said surface. Bythe use of this device such a situation is avoided, in that because ofthe belt being tightly clamped and the peculiar construction of theknife :blade operating as it does with a can-opener movement in a narrowslot, the knife is com pelled to make a out which is perpendicular tothe surface of the belt. It will also be observed that this device willtakewnot only belts of various widths but this'device will cut cleanlyand quickly, belts of various thickness and compositions such asleather, canvas, rubber, and balata.

The adjustment, which has been previously' described for locating theextreme holes equidistant from the sides of the belt, provides a noveland unusual feature in that after a series of round holes have beenpunched as heretofore described the table 30, with the belt clampedtightly thereto, may be shifted laterally to any extent desired and thepunch reoperated with the result that the previously round formed holesmay be formed into elongated or oblong holes. Also it is possible, afterpunching a series of round holes as previously described, to loosen theclamping bar 50, shift the belt longitudinally on the table 30, reclamplthe belt and reoperate the punch to produce an elongated hole extendinglongitudinally of the belt. From the foregoing, it will. therefore beapparent that after a row of holes has been punched, the table 80together with the belt may be moved laterally one half the distancebetween two adjacent holes, the belt then shifted longitudinally to'aslight extent as previously described, and the punch reoperated toproduce a second row of holes in staggered relation to the first row ofholes.

A'further feature of the invention resides in the cutter die 75. That isto say, from Figure 2 it will be observed that the member is providedwith a threaded neck portion which extends throughthe jaw member 73 andis engaged by the cap screw 76 to hold the die 7 5 rigid with the saidjaw. It is obvious that should holes of larger or lesser diameter,according to the size of the belt or the size of fasteners used,bedesired, a punch die of the desired diameter would be used to replacethe die 75. In other words the punch die 7 5 is made easily de-'mountable from the punch jaw 73 for the purpose of replacement.

It is obvious that those skilled in the art may vary-the details ofconstruction as well as the arrangement of parts without departing' fromthe spirit of the invention, and

therefore it is not desired to limited to the foregoing disclosureexcept as may be required by the claims.

hat isclaimed is 1. In a belt squaring and punching machine thecombination ofa table; means to hold a belt on said table; means to cutsquare the end of the held belt,- means to punch holes in thesaid belt;and means to adjust the held belt relatively to the punchmg means. i

2. In a belt 'squaringand' punching machine the combination of a table;means comprising a clamping bar to hold a belton said table; means toout square the end of the held belt; means to punch holes in the saidbelt; and means to adjust the heldbelt relatively to the punching means.

In abe'lt squaring and punching machine the combination of 'a table;means to hold a belt on said table; a pair of uedges to actuate saidholding means; means-to cut square the end of the held belt; means topunch holes in the said belt; and means to adjust the held beltrelatively to the punchlng means.

4. In a belt squaring and punching machine the combination of a table;means to hold a belt on said table; a pair of oppositely moved wedges toactuate said holding means; means to cut square the end of the heldbelt; means to punch holes in the said belt; and means to adjust theheld belt relatively to the punching means.

5. In a belt squaring and punching machine the combination of a table;means to hold a belt on said table; rotatable and slidable means to cutsquare the end of the held belt; means to punch holes in the said belt;

and means to adjust the held belt relatively to the punching means.

6. In a belt squaring and punching machine the combination of a tableprovided with straight edges; means to hold a belt on said table againstone of said straight edges; a frame slidably mounted on said table;means mounted on said frame to cut square the end of the held belt meansto punch holes in the said belt; and means to adjust the held beltrelatively to the punching means.

7. In a belt squaring and punching machine the combination of a tableprovided with straight edges; means to hold a belt on said table againstone of said straight edges; :1 frame slidably mounted on said table andprovided with a slot disposed at a right angle to said straight edges;means mounted on said frame to cut square the end of the held belt;means carried by said frame to punch holes in the said belt; and meansto adjust the held belt relatively to the punching means.

8. In a belt squaring and punching machine the combination of a tableprovided with straight edges; means to hold a belt on said table againstone of said straight edges; a frame slidably mounted on said table andprovided with a slot disposed at a right angle to said straight edges;means comprising a cutter associated with said slot and mounted on saidframe to cut square the end of the held belt; means to punch holes inthe said belt; and means to adjust the held belt relatively to thepunching means.

9. In a belt squaring and punching machine the combination of a tableprovided with straight edges; means to hold a belt on said table againstone of said straight edges; a. frame slidably mounted on said table;means mounted on said frame to cut square the end of the held belt;slidable means carried by said frame to punch holes in the said belt;and means associated with said frame and table to adjust the held beltrelatively to the punching means.

10. In a belt squaring and punching machine the combination of a table;means to hold a belt on said table; means to cut square the end of theheld belt; means to punch holes in the said belt and screw actuatedmeans to adjust the held belt relatively to the punching means.

11. In a belt squaring and punching machine the combination of means tocut square the end of a belt; means to punch a row of. holes in saidbelt; and means whereby said belt and row of holes may be adjustedrelatively to said punching means, whereby a second row of. holes instaggered relation to the holes in said first row may be punched in saidbelt.

12. In a belt squaring and punching machine the combination of rotatableand slidable means to cut square the end of a belt; means to punch a rowof holes in said belt; and means whereby said belt and row of holes maybe adjusted relatively to said punching means, whereby a second row ofholes in staggered relation to the holes in said first row may bepunched in said belt.

13. In a belt squaring and punching machine the combination of a table;means to hold a belt on said table; means to cut square the end of theheld belt; means slidable across said table, to punch holes in saidbelt; and means to adjust the held belt relatively to the punchingmeans.

1 1. In a belt squaring and punching machine the combination of means tocut square the end of a belt; means to punch a row of holes in saidbelt; and means comprising a clamping bar and a screw whereby said beltand row of holes may be adjusted relatively to said punching means,whereby a second row of holes in staggered relation to the holes in saidfirst row may be punched in said belt.

15. In a belt squaring and punching machine the combination of means tocut square the end of a belt; means to punch a row of holes in saidbelt; and means whereby said belt and row of holes may be laterallyadjusted relative to said punching means whereby a second row of holesin staggered relation to the holes in said first row may be punched insaid belt.

In testimony whereof we affix our signatures.

ALEC J. GERRARD. LEROY F. I-IINTZ.

